The linear length around the house can be calculated in a few different ways.

a. Use a tape measure to get the result

b. Take the square root of the square footage and multiply by 4. Note a rectangular home should be multiplied by about 1.10 to achieve a larger number. There is a square root calculator on most phones. Simply open your calculator and turn it 90 degrees to see the symbol.

Example: 922 square foot home = ((Square root of 922 = 30.33) X 4 = 121.45))

The linear length of a house multiplied by the height of the ceilings is the gross wall area. Therefore a two-story home that is one system you would add the two floors together. So a house with two 8-foot ceiling heights up and down would be 16 feet. Then the linear length of the house would only be the FIRST FLOOR.

Do not calculate the linear length of a shared wall on a duplex home.

Example: A house with 20 foot walls. The fourth wall would not be in the calculation. So the house's linear length would be 60 feet.

The data auto-filled from an outside source will provide the square footage, the number of bedrooms and the age of the home. These three points of data may not always be correct since it is pulling from an outside unconfirmed source. It is the responsibility of the salesperson to verify this data.

The number of bedrooms in the image above represents two persons per bedroom. Each person is 500 btuh's.

The number of appliances is equal to 1500 internal btuh's per appliance. You can modify this if you feel as if the internal load is greater than normal.

The age of the home determines the wall insulation. Older homes have less insulation

Duct Loss/Gain is a subjective selection. Ducts in a conditioned space should be Zero % while ducts in a 150 degree attic should be higher, at around 125%.

RNC and AOR stands for Residential New Construction and Add-On Replacement. The default is .5 since generally HvacBizPro is a residential replacement program. The subjective modification would be based on the users judgement of how well the home is built. We very well built home would be .2 to .3. A poorly built or "leaky" home might be .6 to .8. Increasing the number will increase the latent load of the home.

When the information does not auto-populate in number 3, it is imperative the user provide this data. The square footage on STEP 2 is equal to the "Roof Type". So if you have a 1000 square foot home, the ceiling will need to be entered as 1000 on Step 5. Be sure to enter this manually.

On a two-story home, the square footage entered will be determined by which floor you are heating or cooling. If you have one system for one floor, you will only populate the field where energy is entering that space.

Example 1: Upstairs system replacement. House is 800 square feet on the upstairs. The floor entry in entry on STEP 5 will be ZERO.

Example 2: Downstairs system replacement. Same house is 800 square feet on the downstairs. The ceiling entry on STEP 5 will also be ZERO.

Door type entry on Step 5 is the actual square footage of the total doors in the home.

Example. A house with two doors that are 7 x 3 would be 42 square feet. Enter 42 in the area. 7x3=21. 21x2=42

The NET WALL area will calculate on STEP 5 when the linear length around the house on STEP 2 has been entered. And the windows and doors have been entered on STEPs 3 and 5. Seeing a negative number means the linear length on STEP 2 is not filled in.

Once you have created your load analyzation and you are on the last step, choosing "Save and Generate PDF" will create the PDF document and place it on the Customer Record at the bottom. Only one PDF can exist for a home. It will always be saved there on that record. It is recommended that you not share this with you customer. Only show it to them.